What Do You Know About Simple Machines?

ebook 20 Questions: Physical Science

By Tilda Monroe

cover image of What Do You Know About Simple Machines?

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Simple machines make all of our lives easier on a daily basis. In this informative book, young readers will be introduced to many uses of the lever, pulley, inclined plane, wheel and axle, screw, and wedge.

What Do You Know About Simple Machines?